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Groups > alt.comp.software.thunderbird > #21764 > unrolled thread

Strange SIM card status message in KaiOS: "Locked SIM"?

Started by"Mr. Chang Man-wai" <toylet.toylet@gmail.com>
First post2026-08-13 02:52 +0800
Last post2026-08-17 10:58 +0800
Articles 5 — 3 participants

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  Strange SIM card status message in KaiOS: "Locked SIM"? "Mr. Chang Man-wai" <toylet.toylet@gmail.com> - 2026-08-13 02:52 +0800
    Re: Strange SIM card status message in KaiOS: "Locked SIM"? "Carlos E. R." <robin_listas@es.invalid> - 2026-08-15 12:56 +0200
      Re: Strange SIM card status message in KaiOS: "Locked SIM"? Daniel70 <daniel47@nomail.afraid.org> - 2026-08-16 20:13 +1000
        Re: Strange SIM card status message in KaiOS: "Locked SIM"? "Carlos E. R." <robin_listas@es.invalid> - 2026-08-16 13:05 +0200
        Re: Strange SIM card ... eSIM? "Mr. Chang Man-wai" <toylet.toylet@gmail.com> - 2026-08-17 10:58 +0800

#21764 — Strange SIM card status message in KaiOS: "Locked SIM"?

From"Mr. Chang Man-wai" <toylet.toylet@gmail.com>
Date2026-08-13 02:52 +0800
SubjectStrange SIM card status message in KaiOS: "Locked SIM"?
Message-ID<115ifds$123rr$1@toylet.eternal-september.org>
Still using an old Nokia 2720 Fold phone, running KaiOS.
I read that KaiOS was based on Mozilla FireOS.

I noticed that one of the SIM card momentarily was
labelled "Locked SIM", before the label changed to
the name of the mobile network operator.

Could a cell phone know whether a SIM card was
locked? I supposed the operator would only
deny a suspicious SIM card of services.

The Nokia phone doesn't support e-SIM as far
as I know. It's a really out-dated cellphone.

Puzzling...

-- 

    @~@   Simplicity is Beauty! Remain silent! Drink, Blink, Stretch!
   / v \  May the Force and farces be with you! Live long and prosper!!
  /( _ )\ https://sites.google.com/site/changmw/
    ^ ^   https://github.com/changmw/changmw
          The game is afoot... Meow...

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#21782

From"Carlos E. R." <robin_listas@es.invalid>
Date2026-08-15 12:56 +0200
Message-ID<neauu4F35q2U4@mid.individual.net>
In reply to#21764
On 2026-08-12 20:52, Mr. Chang Man-wai wrote:
> 
> Still using an old Nokia 2720 Fold phone, running KaiOS.
> I read that KaiOS was based on Mozilla FireOS.
> 
> I noticed that one of the SIM card momentarily was
> labelled "Locked SIM", before the label changed to
> the name of the mobile network operator.
> 
> Could a cell phone know whether a SIM card was
> locked? I supposed the operator would only
> deny a suspicious SIM card of services.

The SIM card also provide software and functions to the phone, I 
understand. ISPs use this.

> 
> The Nokia phone doesn't support e-SIM as far
> as I know. It's a really out-dated cellphone.

There are "e-SIM cards" that add eSIM functionality to the phone. Read 
comp.mobile.android group.

> 
> Puzzling...
> 


-- 
Cheers,
        Carlos E.R.
        ES🇪🇸, EU🇪🇺.

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#21793

FromDaniel70 <daniel47@nomail.afraid.org>
Date2026-08-16 20:13 +1000
Message-ID<115s2fd$38pe$1@dont-email.me>
In reply to#21782
On 15/08/2026 8:56 pm, Carlos E. R. wrote:
> On 2026-08-12 20:52, Mr. Chang Man-wai wrote:
>>
>> Still using an old Nokia 2720 Fold phone, running KaiOS.
>> I read that KaiOS was based on Mozilla FireOS.
>>
>> I noticed that one of the SIM card momentarily was
>> labelled "Locked SIM", before the label changed to
>> the name of the mobile network operator.
>>
>> Could a cell phone know whether a SIM card was
>> locked? I supposed the operator would only
>> deny a suspicious SIM card of services.
> 
> The SIM card also provide software and functions to the phone, I 
> understand. ISPs use this.
> 
>> The Nokia phone doesn't support e-SIM as far
>> as I know. It's a really out-dated cellphone.
> 
> There are "e-SIM cards" that add eSIM functionality to the phone. Read 
> comp.mobile.android group.
> 
>> Puzzling...
>>
Aren't ALL SIM cards 'e' .... so therefore all "e-SIM" cards??

Seems to me if phones have two SIM cards in them, one should be for 
Phone functionality (with room for increased functionality, maybe, and 
the second be for MY Functionality (Phone numbers, SMS, Photo's, etc.(My 
STUFF))
-- 
Daniel70

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#21794

From"Carlos E. R." <robin_listas@es.invalid>
Date2026-08-16 13:05 +0200
Message-ID<nedjs7FfbjoU2@mid.individual.net>
In reply to#21793
On 2026-08-16 12:13, Daniel70 wrote:
> On 15/08/2026 8:56 pm, Carlos E. R. wrote:
>> On 2026-08-12 20:52, Mr. Chang Man-wai wrote:
>>>
>>> Still using an old Nokia 2720 Fold phone, running KaiOS.
>>> I read that KaiOS was based on Mozilla FireOS.
>>>
>>> I noticed that one of the SIM card momentarily was
>>> labelled "Locked SIM", before the label changed to
>>> the name of the mobile network operator.
>>>
>>> Could a cell phone know whether a SIM card was
>>> locked? I supposed the operator would only
>>> deny a suspicious SIM card of services.
>>
>> The SIM card also provide software and functions to the phone, I 
>> understand. ISPs use this.
>>
>>> The Nokia phone doesn't support e-SIM as far
>>> as I know. It's a really out-dated cellphone.
>>
>> There are "e-SIM cards" that add eSIM functionality to the phone. Read 
>> comp.mobile.android group.
>>
>>> Puzzling...
>>>
> Aren't ALL SIM cards 'e' .... so therefore all "e-SIM" cards??

No.

e-SIM are not cards, they are files.

> 
> Seems to me if phones have two SIM cards in them, one should be for 
> Phone functionality (with room for increased functionality, maybe, and 
> the second be for MY Functionality (Phone numbers, SMS, Photo's, etc.(My 
> STUFF))

No. One card is for the first ISP, the second is for the second ISP. 
Like, one for your personal phone number, and the second for the work 
phone number. Or for a number at your travel destination .

You are talking of memory cards.

-- 
Cheers,
        Carlos E.R.
        ES🇪🇸, EU🇪🇺.

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#21800 — Re: Strange SIM card ... eSIM?

From"Mr. Chang Man-wai" <toylet.toylet@gmail.com>
Date2026-08-17 10:58 +0800
SubjectRe: Strange SIM card ... eSIM?
Message-ID<115ttch$lrbg$1@toylet.eternal-september.org>
In reply to#21793
On 8/16/2026 6:13 PM, Daniel70 wrote:
>
> Aren't ALL SIM cards 'e' .... so therefore all "e-SIM" cards??
> 
> Seems to me if phones have two SIM cards in them, one should be for
> Phone functionality (with room for increased functionality, maybe, and
> the second be for MY Functionality (Phone numbers, SMS, Photo's, etc.(My
> STUFF))

Your Honors/Honours:

You will need to check the software and hardware that
use the SIM ID number or maybe just the registered
cellphone number!

Like a firewall and any computer storage, the SIM
ID in a physical SIM will more or less be changed
into a temporary memory address that can be
tampered with.

It's not like sending a physical paper with ink
sealed with a kiss(?) and wax in a physical
envelope. Computer networking is virtual, just
signals and switches.

Meow... :)


-- 

    @~@   Simplicity is Beauty! Remain silent! Drink, Blink, Stretch!
   / v \  May the Force and farces be with you! Live long and prosper!!
  /( _ )\ https://sites.google.com/site/changmw/
    ^ ^   https://github.com/changmw/changmw
          The game is afoot... Meow...

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